I don't know what your day is like, but for myself I started during the work week by doing intermittent fasting. I would stop eating (in particular, no calories, so I stopped drinking too!) by 8pm the night before and then do not eat before 11-noon the next day. This gave me an 8-9 hour window to eat. It was only rough the first few days, but if you stick with it, you might find yourself doing intermittent fasting on the weekends without even trying.